Automatic electromagnetic railroad gate



A. TATIOSSIAN AUTOMATIC ELECTROMAGNETIC RAILROAD GATE April 9, 1929.

Filed April 50, 1928 2 Sheets-Sheet 1 w M w x El GEE. qr/need BY in Z EE E RNEY April 1929 A. TATIOSSIAN AUTOMATIC ELECTROMAGNETTC RAILROADGATE Filed April 30, 1928 2 Sheets-Sheet l NVEN TOR.

BY I

ATTORNEY an... so on until the regularly and slowly it will not1,708,649 FATE-NT OFFICE.

ARMENAG- TATEG SSIABT, 01F PEABODY, MASSACHUSETTS.

AUTGIVEATIC ELEOTRQ Iw'lAEi-NETIC RAILROAD GATE.

. Application filed in'ii 30, 1928.

"ention relates generally to railway d mo e particular refers ate towerprovided with a central verticat post in which plurality ofelectro-magnets disposed in vertical rows. A support on the saidvertical post and is provided with iron rollers 'raction or" theele\':tro'-magnets. Counghts are connected with the support for normallysame into upperposition. Each of the electromagnets is slidably mountedthe top mag ner izcd to slightly draw the supdownwards, then the magnetsadtop magnets are energized for furdrawing the support body downwardssupport body reaches its lowest position. Base electromagnets arcarranged,for 'holding the support body in this position until thetrainpasses the gate, then the counterweight-s raise the same. {latelements are attached to and project from the support body operatingtherewith. Obviously it the gate elements descend be very noticeable. Ameans is therefore provided for shaking and vibrating the gate elementsduring ascending and descending for attracting attention. 7

For further comprehension of the invention and of the objects andadvantages thereof reference will be had to thefollowing description andaccompanying drawings, and to the appended claims in which the variousnov l feature of the invention are more particularly set forth.

In the accompanying drawing, forming a material part of this disclosure:

F 1 is a plan View of a portion ot'railway tracks and the gate appliedto crossing thereof.

Fig. 2 is an end View of the tower of the device, a portion thereofbeing broken away for disclosing the counterweights.

Fig. 3 is an end view of the other side 01 the tower.

Fig. 4 1s a front view of the tower certain portions thereof being shownbroken away.

- 13 consists of end and the rooil 11. rrom the side ends of the supportbody 11 Serial li o. .73,595.

Pi 5 is complete front View of the tower whicl is shown resting upon apedestal.

Fig. is a. horizontal sectional view. taken on the line 3-6 of Fig. 2. I

T a similar view, taken on the line 7? of Fig 2.

hi 8 is schematic diagrammatical view ii ng of the device.

The reference numeral 10 indicates generally the base of the tower,numeral 11 the roof, an d numerals l2 corner angle posts con necting thebase and the roof. A central vc tical post 13 extends from the base tothe plurality of clectromagnets let are -..ierein in vertical rows. Thepost plates 15 with cement l6 electromagnets, therebedisposed A support7 is slidably mounted on body 1 the vertical oost 1.3. and has a)luralit of n i L 1 rollers 18 a" its LOP and arran 'ed around the post13 and bearing against the post. Iron 3. 1 1o.

- ers 19 are mounted on the support body and bear against the front andrear sides of he post 13. A. flexible cable 20 is attached t ie supportbody 17 at the front and rear o portions thereof and along thetransverse center. t is pointed out that the supt body 1'? is free totilt back and forth ways since only two rollers 18 are ar ed on theopposite sides of the post 1 i and as stated these rollers are at thetop 0 the support body, and the cables 20 are a the transverse centers.

The cables 20 pass over pulleys 21 mounted on the roof 11, and then areattached to counter-weights 22 vertically slidably arranged on the rods28 extending between the base 10 (late elements 24 project A verticalguide rod 25 with a serrated oute face ext-onus between the base and theri fin arm 27 projects from the support body 17 and has an end rollerQSengaging again t the serrated face 26 for vibrating or rocking thesupport body and. attached gate elements sideways as they rise ordescend for attracting attention. Base electromagnets 29 are mounted inthe base 10 directly beneath the iron rollers 19.

As shown in Fig. 1, a gate device is placed on opposite sides of thetracks 30 and 31 at a road crossing 32. The tracks are divided byinsulators 38 into gate operating sections 36 electrically connectedwith the electromagnets of the device as shown in Fig. 8, and arrangedfor completing an electrical circuit each section to a contact portion lelectrically engaged by a contact arm 17* which is alsoengageable withcontacts l i connected to the other ends'ot the windings oi the saidelectromagnets.

A train passing over one of the gate operating sections 36 completes theelectrical circuit across the rails thereof, and the arm 1}? normallyconnects with a contact i l connected with the electromagnets 14: intheuppermost position on the post 13 .l or energizing these partlcularmagnets.

The contact arm 17 is carried on'the support body 17. As the topelectromagnets are energized the iron pulleys 19 are attracted and thesupport body 17 moves down-wards. This downward motion breaks theconnection between arm 17 and the specified contact is, but the momentumof the support body'is suiticient to continue the downward motion untilarm 17 a connects with a second contact 1% connected with the magnets inthe next to the uppermost position, which magnets then attract the putleys 19 and the support body moves further downwards. The vdownwardmotion of the support body necessarily will be in steps and jerky forsimilarly 'afi'ecting the gate elements for attracting attention. c

Qbviously as the 'top magnets are energized, the pulleys 19 are drawndownwards,

and vibrate also-as determined by the serrated face 26, then as themagnets next to the 1 top position become energized thepulleys 19 andthe gate, descend further, and so on until the gate is entirely closedas indicated by the dotdash lines 35 in Fig. 5; The electromagnets 29arealso connected with the track sections 36 and arranged for beingenergized for holding theatesclosed until thetrain has 0 t5 r I passedthe: crossing. Then the counterweights return the gate elements to openposition. r V

Wlnle I have shown and described the preferred embodiment of myinvention, it is to be understood that I do not limit myself to theprecise construction herein disclosed and the right is reserved to allchangesand'modi- I fications coming within the scope of the invention asdefinedin the appended claims.

Having-thus described my invention what I claim as new and desire tosecure by United States Letters Patent is:

1. A device of the classdescribed, comprisinga base, a'roof spacedtherefrom, a central post extending-fron'i the base to the roof, magnetsmountedinvertical rows in the v post, a support body slidably andvibratably mounted on the post, iron rollers on the support bony :torthe magnet attraction, a

, means for normally urging the support-body to top position, gateelements being mounted on the support body, a means for vibrating orrocking the gate-elements and the support bodylduring ascending anddescending, and base magnets for holding the support body in lowestposition.

2. A device of the class described, com prising a base, a root spacedtherefrom, a central post extending from the base to the roof, magnetsmounted in vertical rows in the post, a support. body sildablyandvibratably mounted on thepost, including top rollers bearing against thepost and supporting cable attached on a center line'for permitting thevibrating, iron rollers on the support body for the magnetic attraction,a means for normally urging the support body to top position, gateelements being mounted on the support her y, a means for vibrating orrocking the gate elements and the support body during ascending anddescending, and base magnets for holding the support body in lowestposition. c p I 3. A device of the class described, comprising a base, aroot" spaced therefrom, a central post extendin from the base to theroof, magnets mounted in vertical rows'in the post, supportbody-slidably and vibratably mounted on ths post, iron rollers on thesupport body for the magnet attraction, a means for normally urging thesupport body to top position, gate elements being mounted on the supportbody, a means for vibrating or rocking the gate elements and the supportbody during ascending and descending including an arm projecting fromthe support body and provided with a roller engaging a serra ed face ofa vertical mounted post, and base magnets for holding the support bodyinlowest position.

In testimony whereof I have affixed my signature.

'7 ARMENAG rariossnia.

